The pure rotational spectrum of MgCCH (X$^{2}$\Sigma$^+$) in the frequency range of 9-40 GHz has been measured using Fourier transform microwave (FTMW) methods. The molecule was synthesized using discharge assisted laser ablation spectroscopy (DALAS) from a mixture of 0.1\% acetylene in argon and the ablation of a magnesium rod. From these data, the hydrogen hyperfine parameters have been determined for the first time, as well as refinement of the rotational and spin-rotational constants, combined with previous millimeter-wave spectra measured by the Ziurys group.

Description:

Author Institution: University of Arizona, Department of Chemistry and Biochemitry and Steward Observatory, Tucson, AZ-85721; University of Kentucky, Department of Chemistry, Lexington, KY-40506

URI:

http://hdl.handle.net/1811/49291

Other Identifiers:

2011-RC-04

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